#pragma once
#include <iostream>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/stat.h> 
#include <unistd.h>
#include <cerrno>
#include <cstring>
#include "Err.hpp"
#include "Log.hpp"

static const int defaultfd = -1;
static const int gbacklog = 32;

class Sock
{
public:
    Sock() :_sock(defaultfd)
    {}

    void Socket()
    {
        _sock = socket(AF_INET, SOCK_STREAM, 0);
        if (_sock < 0)
        {
            logMessage(FATAL, "socket error, code:%d, errstring:%s", errno, strerror(errno));
            exit(SOCKET_ERR);
        }
    }

    void Bind(const uint16_t& port)
    {
        struct sockaddr_in local;
        local.sin_family = AF_INET;
        local.sin_port = htons(port);
        local.sin_addr.s_addr = INADDR_ANY;

        if (bind(_sock, (struct sockaddr*)&local, sizeof(local)))
        {
            logMessage(FATAL, "bind error, code:%d, errstring:%s", errno, strerror(errno));
            exit(BIND_ERR);
        }
    }

    void Listen()
    {
        if (listen(_sock, gbacklog) < 0)
        {
            logMessage(FATAL, "listen error, code:%d, errstring:%s", errno, strerror(errno));
            exit(LISTEN_ERR);
        }
    }

    int Accept(std::string* clientip, uint16_t* clientport)
    {
        struct sockaddr_in temp;
        socklen_t len = sizeof(temp);
        int sock = accept(_sock, (struct sockaddr*)&temp, &len);
        if (sock < 0)
        {
            logMessage(WARNING, "accept error, code:%d, errstring:%s", errno, strerror(errno));
        }
        else
        {
            *clientip = inet_ntoa(temp.sin_addr);
            *clientport = ntohs(temp.sin_port);
        }
        return sock;
    }

    int Connect(const std::string& clientip, const uint16_t& clientport)
    {
        struct sockaddr_in server;
        memset(&server, 0, sizeof(server));
        server.sin_family = AF_INET;
        server.sin_addr.s_addr = inet_addr(clientip.c_str());
        server.sin_port = htons(clientport);

        return connect(_sock, (struct sockaddr*)&server, sizeof(server));
    }

    int Fd()
    {
        return _sock;
    }

    void Close()
    {
        close(_sock);
    }

    ~Sock()
    {
    }
private:
    int _sock;
};